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-   -   RCA and admiral (http://www.videokarma.org/showthread.php?t=269777)

timmy 11-19-2017 02:35 PM

RCA and admiral
 
Any input on these black and white sets, are they nightmares as I never had these. The little one is an RCA and the red and white is admiral. Ok si it's upside down and I'll post a pic of the other set.

timmy 11-19-2017 02:46 PM

Here's the admiral.

Eric H 11-19-2017 03:01 PM

The RCA is difficult to work on, the chassis unfolds into sections but it's still a pain.

The Admiral uses PC boards and is fairly easy to work on as I recall.

decojoe67 11-19-2017 03:12 PM

I have both those models and they're two of the best small-screen portable '50's TV's in both style and performance. I had a friend restore both for me many years ago and they still work very well. They're much better sets than the small screen GE/Hotpoint models.

jr_tech 11-19-2017 03:33 PM

Never have had the Admiral, but I have several RCAs... not easy sets to work on, but very decent performance for such a compact set. Phyl Nelson tells all here:

https://antiqueradio.org/rca16.htm

jr

broadcaster 11-19-2017 04:16 PM

The RCA is a neat set, with a power transformer,too

timmy 11-19-2017 05:44 PM

Quote:

Originally Posted by broadcaster (Post 3192289)
The RCA is a neat set, with a power transformer,too

Yes transformer and it's why such a small set is so heavy.

timmy 11-19-2017 05:49 PM

Does anyone have a schematic for these sets. The admiral crt tests very good but there are a few black caps that have the value in stripes on them in the rear leaking oil so there no good. And the crt adjusting rings I think used to have rubber to hold them on is completely gone so I have to make something up for that. Bad idea to keep the seleniums or put diodes ?

tom.j.fla 11-19-2017 06:22 PM

The ETF has the factory manual for the RCA model 8PT-70x0 series covers early and late production. If the ADMIRAL is a 10" its' in SAMS #350-1 which the ETF also has the SAMS. All the best, Tom.J

timmy 11-19-2017 06:28 PM

Quote:

Originally Posted by tom.j.fla (Post 3192303)
The ETF has the factory manual for the RCA model 8PT-70x0 series covers early and late production. If the ADMIRAL is a 10" its' in SAMS #350-1 which the ETF also has the SAMS. All the best, Tom.J

The crt is a 14 inch.

tom.j.fla 11-19-2017 09:47 PM

The same SAMS folder is used for the 14Y3PC (14") as for the 10" 14Y3PB. All the best, Tom.J

timmy 11-20-2017 06:08 AM

Thanks tom

dieseljeep 11-20-2017 10:44 AM

Quote:

Originally Posted by decojoe67 (Post 3192285)
I have both those models and they're two of the best small-screen portable '50's TV's in both style and performance. I had a friend restore both for me many years ago and they still work very well. They're much better sets than the small screen GE/Hotpoint models.

Wasn't mentioned, but the 8" Emerson was the best of the lot. Power transformer, Conventional circuitry, full superhet AM radio tuner, Standard Coil tuner with UHF in most. Jack for phono and external speaker. A little easier to work on.
UHF was not available in the RCA. Unconventional circuitry, where the 1st IF was part of the tuner. Minimal performer at best.
The Admiral 10,14 and 17" models were similar. :scratch2:

bandersen 11-20-2017 11:58 AM

I've restored several of these. Here a thread you might find useful. Yes, replace the seleniums.

http://www.videokarma.org/showthread.php?t=250143

timmy 11-20-2017 12:50 PM

Quote:

Originally Posted by bandersen (Post 3192341)
I've restored several of these. Here a thread you might find useful. Yes, replace the seleniums.

http://www.videokarma.org/showthread.php?t=250143

Good thread. Is it really needed to use dropper resistors for diodes instead of seleniums.


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